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Articles 1 - 13 of 13
Full-Text Articles in Life Sciences
Initiation Of Terpenoid Synthesis In Osmophores Of Stanhopea Anfracta (Orchidaceae): A Cytochemical Study, Kenneth J. Curry
Initiation Of Terpenoid Synthesis In Osmophores Of Stanhopea Anfracta (Orchidaceae): A Cytochemical Study, Kenneth J. Curry
Faculty Publications
The terpenoid component of the osmophore fragrance in Stanhopea species is composed of isoprene units synthesized via the mevalonic acid pathway. Localization of hydroxymethylglutaryl CoA synthase in the pathway was achieved using a technique which elicits the formation of an electron- dense precipitate of uranyl ferrocyanide at the point where an acetyl group from acetyl CoA is transferred to acetoacetyl CoA, releasing free CoA-SH. Applying this technique to cells of the osmophore of S. anfracta resulted in a precipitate between the inner and outer mitochondrial membranes, in the smooth endoplasmic reticulum, and, to a lesser extent, on the outer surface …
Osmophores Of Stanhopea (Orchidaeceae), William Louis Stern, Kenneth J. Curry, Alec M. Pridgeon
Osmophores Of Stanhopea (Orchidaeceae), William Louis Stern, Kenneth J. Curry, Alec M. Pridgeon
Faculty Publications
Species of the Neotropical orchid genus Stanhopea produce a fragrance comprising terpenoids and aromatics which attracts euglossine bee pollinators. The secretory tissue, called an osmo- phore, is located in the adaxial region of a sac formed near the proximal portion of the floral lip. This region is easily recognized in Stanhopea oculata and S. wardii because it is papillate. The osmophore in these two species includes all the cells of the papillae and those directly below, that grade into fundamental tissue. Osmophore cells are more densely cytoplasmic than cells in the adjacent tissue. Numerous amyloplasts and mitochondria are seen in …
Forval: A Computer Program For Forest Valuation, Steven H. Bullard, Thomas J. Straka, T. G. Matney
Forval: A Computer Program For Forest Valuation, Steven H. Bullard, Thomas J. Straka, T. G. Matney
Faculty Publications
FORVAL (FORest VALuation) is a computer program for cash-flow analysis of forestry investments. The FORTRAN 77 program is available from the MAFES Forestry Department for Data General computers using the Advanced Operating System with Virtual Storage, and for IBM-compatible personal computers (send letter of request and 51!.-inch diskette to P.O. Drawer FR, Mississippi State, MS 39762).
Effect Of Time And Depth Of Planting On Survival And Growth Of Loblolly Pine (Pinus Taeda L.) Seedlings In Texas, M. Victor Bilan
Effect Of Time And Depth Of Planting On Survival And Growth Of Loblolly Pine (Pinus Taeda L.) Seedlings In Texas, M. Victor Bilan
Faculty Publications
Loblolly pine seedlings were lifted from a nursery bed in two-week intervals (November 4-April 21) and were immediately planted in an open field. Each planting included seedlings planted at the root collar (A), one-half of shoot buried (B) and most of the shoot buried except for the one-inch terminal (C). Average mortality during the first year was 10%, 13% and 16% for the A, B and C planting depths, respectively; the corresponding values for the second year mortality were 2%, 3% and 5%. Average first year mortality by the planting periods ranged - 24% with the highest values for April …
Management And Pest Management Considerations On Droughty Soils: Four Year Results, David Kulhavy, Kenneth G. Watterson, James Kroll, James R. Meeker
Management And Pest Management Considerations On Droughty Soils: Four Year Results, David Kulhavy, Kenneth G. Watterson, James Kroll, James R. Meeker
Faculty Publications
Four year survival of pines on droughty (Typic Quartzips~mments) soils was best for longleaf pine and Terr-Sorb -treated loblolly pine. Pest considerations include town ants and Nantucket pine tip moths on loblolly pine. Untreated loblolly pine had reduced leader and total height growth anH increased tip moth infestations, compared to Terra-Sorb and clay-slurry treated loblolly pine. Soil texture averaged less than eight percent silt and clay combined in the treatment areas.
Estimating The Amount Of Wood Per Acre In Loblolly And Slash Pine Plantations In East Texas, J. David Lenhart
Estimating The Amount Of Wood Per Acre In Loblolly And Slash Pine Plantations In East Texas, J. David Lenhart
Faculty Publications
Two diameter distribution yield prediction systems are presented for loblolly pine (Pinus taeda L.) and slash pine (Pinus elliotti Engelm.) plantations located on non-old-fields in East Texas. A separate system was developed for each species based on the initial measurement of the East Texas Pine Plantation Research Project permanent plots.
Tree Content And Taper Functions For Loblolly And Slash Pine Trees Planted On Non-Old-Fields In East Texas, J. David Lenhart, Terry L. Hackett, Charlie J. Laman, Thomas J. Wiswell, Jock A. Blackard
Tree Content And Taper Functions For Loblolly And Slash Pine Trees Planted On Non-Old-Fields In East Texas, J. David Lenhart, Terry L. Hackett, Charlie J. Laman, Thomas J. Wiswell, Jock A. Blackard
Faculty Publications
Equations are presented to estimate total or partial stem content in cubic feet and pounds (green or dry) for loblolly pine (Pinus taeda L.) and slash pine (Pinus elliotti Engelm.) trees planted on non-old-fields in East Texas. Equations are included to estimate the content of the complete tree (stem and branches). In addition, a set of compatible stem taper functions are described. South. j. Appl. For. 11(3):147-151
Forest Insect Hazard Rating, Ray R. Hicks Jr., Jack E. Coster, G.N. Mason
Forest Insect Hazard Rating, Ray R. Hicks Jr., Jack E. Coster, G.N. Mason
Faculty Publications
No abstract provided.
Bugs! Bugs! Bugs!-Interpreting Insects For Children, David Kulhavy
Bugs! Bugs! Bugs!-Interpreting Insects For Children, David Kulhavy
Faculty Publications
No abstract provided.
Basic Mathematical Programming Applications To Weed Control In Forestry, Steven H. Bullard, R. H. Richardson, Thomas J. Straka
Basic Mathematical Programming Applications To Weed Control In Forestry, Steven H. Bullard, R. H. Richardson, Thomas J. Straka
Faculty Publications
Many studies document herbicide performance for Heed and hardwood control in forestry. Few studies, hoHever, attemp t to develop optima l application strategies. Stand-level optindzation is presently limited due to lack of groHth and yield information. Forest-level optimization is possible, however, and has great potential to aid in planning forestry weed control prog rams.
Costs And Cost Trends For Forestry Practices In The South, William F. Watson, Thomas J. Straka, Steven H. Bullard
Costs And Cost Trends For Forestry Practices In The South, William F. Watson, Thomas J. Straka, Steven H. Bullard
Faculty Publications
Cost estimates of practicing forestry in the South during 1986 and cost changes during the 1952-1986 period are presented in this report. Albert C. Worrell reported the original cost study in Forest Farmer in May 1953. His work was updated by James G. Yoho and Robert B. Fish in the November 1961 issue of Forest Farmer. Other revisions include James G. Yoho, George F . Dutrow, and James Moak (Forest Farmer, 1971); James Moak and Jim Kucera (Forest Farmer, 1975); James Moak, James Kucera, and W.F. Watson (Forest Farmer Manual, 1977); James Moak, W.F. Watson, and Paul Van Deusen (Forest …
State Cost-Share Programs For Nonindustrial Private Forestry Investments, Thomas J. Straka, Steven H. Bullard
State Cost-Share Programs For Nonindustrial Private Forestry Investments, Thomas J. Straka, Steven H. Bullard
Faculty Publications
Fourteen states provide cost-share assistance for approved forestry practices. Host programs are intended to increase forest productivity. Funding is typically from state appropriations and/or taxes on primary forest products. Cost-share rates range up to 80 percent, but most programs are at the 50 percent level. All programs require an approved forest management program. Eligible practices are generally reforestation, site preparation, and timber stand improvement.
Great Gains Or Weight Work, L Kravitz, C J. Cisar
Great Gains Or Weight Work, L Kravitz, C J. Cisar
Faculty Publications
No abstract provided.